HANJing-chao,CHENJing,SHENGJun.Simulation of Wastewater Treatment Plant Upgrading Assisted by Implementation of Sponge Facilities[J].China Water & Wastewater,2024,40(13):122-128.
海绵设施辅助污水处理厂厂区提标的模拟研究
- Title:
- Simulation of Wastewater Treatment Plant Upgrading Assisted by Implementation of Sponge Facilities
- 关键词:
- 海绵设施; 污水处理厂; 排水标准提升; 模型模拟; InfoWorks ICM
- Keywords:
- sponge facility; wastewater treatment plant; upgrading of drainage standard; model simulation; InfoWorks ICM
- 摘要:
- 源头海绵设施在径流总量和径流污染控制方面的作用已得到广泛认可，但其对建成地块排水标准提升方面的效果有待研究。以上海某污水处理厂厂区为研究对象，针对现状雨水管网标准偏低、区域内涝风险较高的问题，采用InfoWorks ICM软件，应用可持续排水系统（SUDS）/低影响开发（LID）功能模块，模拟分析了海绵设施对厂前区和尾水区排水系统提标的作用和效果。模拟结果显示，对于厂前区和尾水区，在3年一遇设计降雨下，海绵改造前后地面积水面积比由4.18%和13.11%均降为0，达到了雨水系统提标的目标，同时径流峰值削减率分别为35.97%和21.53%，径流总量削减率分别为28.91%和25.89%，效果较为明显，表明因地制宜地采用海绵设施可辅助地块实现排水标准的提升。
- Abstract:
- The role of source sponge facilities in the control of total runoff and runoff pollution has been widely recognized. However, its effect on the improvement of drainage standards of built blocks remains to be investigated. In response to the issues of substandard rainwater pipe network and high risk of regional waterlogging at a wastewater treatment plant (WWTP) in Shanghai, the InfoWorks ICM software and the sustainable drainage system (SUDS)/low impact development (LID) functional modules were employed to simulate and analyze the impact and effectiveness of sponge facilities on upgrading drainage systems in both the front and tailwater areas of the WWTP. The surface waterlogging area ratio of the two areas was reduced from 4.18% and 13.11% to 0 after the implementation of sponge transformation under the design rainfall with 3-year return period, achieving the targeted system upgrade. Additionally, there was a significant reduction in peak runoff by 35.97% and 21.53%, as well as a total runoff reduction rate of 28.91% and 25.89%, respectively. These results demonstrated that the sponge facility effectively contributed to improving drainage standards of built blocks.
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